Class: Rack::Lock

Inherits:
Object
  • Object
show all
Defined in:
lib/rack/lock.rb

Overview

Rack::Lock locks every request inside a mutex, so that every request will effectively be executed synchronously.

Constant Summary

FLAG =
'rack.multithread'.freeze

Instance Method Summary collapse

Constructor Details

#initialize(app, mutex = Mutex.new) ⇒ Lock

Returns a new instance of Lock



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# File 'lib/rack/lock.rb', line 10

def initialize(app, mutex = Mutex.new)
  @app, @mutex = app, mutex
end

Instance Method Details

#call(env) ⇒ Object



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# File 'lib/rack/lock.rb', line 14

def call(env)
  @mutex.lock
  begin
    response = @app.call(env.merge(FLAG => false))
    returned = response << BodyProxy.new(response.pop) { @mutex.unlock }
  ensure
    @mutex.unlock unless returned
  end
end